Convert Miles to Kilometers

Convert miles to kilometers instantly. Type a value below, check the formula and table, then see how the same mi to km conversion looks as a single line in Notes Calculator.

mi 160.934 km

Miles to Kilometers formula

One mile is 1.60934 kilometers, so km = mi × 1.60934. For the reverse, multiply kilometers by 0.621371, or use the Kilometers to Miles converter.

Miles to Kilometers conversion table

Miles (mi)	Kilometers (km)
1	1.60934
2	3.21869
5	8.04672
10	16.0934
20	32.1869
25	40.2336
50	80.4672
100	160.934
250	402.336
500	804.672
1,000	1,609.34

Miles to Kilometers in Notes Calculator

Notes Calculator is a notepad that does math. Write 100 miles to km on any line and the answer appears beside it. Change the number and the result follows. The same works with in and as, and with values stored in variables, so a whole estimate can mix miles and kilometers without a separate converter.

Miles to Kilometers
Note	Result
100 miles to km	160.93 km
100 miles in km	160.93 km
10 km as miles	6.21 mi

Results shown exactly as the app prints them with the default two-decimal setting.

See the unit conversion docs for mixing units in one expression, or open the free web app and try it.

More length conversions

How many kilometers are in one mile?

One mile equals 1.60934 kilometers. To convert miles to kilometers, multiply by 1.60934; to go back, multiply by 0.621371.

How do I convert miles to kilometers in Notes Calculator?

Type the value, the unit, and the target unit on one line: 100 miles to km. The keywords to, in, and as all work, and the result updates as you type. You can also keep the value in a variable and convert it later.

Is this miles to kilometers converter free?

Yes. The converter on this page is free, and Notes Calculator has a free plan for the web, Mac, Windows, Linux, and Android with the same unit conversions built in.